| Hilbert-Huang变换及其在纱线故障诊断中的应用 |
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| 引用本文： | 张敏聪,朱开玉,李从心.Hilbert-Huang变换及其在纱线故障诊断中的应用[J].机械与电子,2007(6):39-42. |
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| 作者姓名： | 张敏聪 朱开玉 李从心 |
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| 作者单位： | 上海交通大学国家模具CAD工程研究中心,上海,200030 |
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| 摘 要： | 阐述了Hilbert-Huang 变换的基本原理,以实际的纱线信号为例,通过经验模态分解(EMD)将纱线信号分解成有限个固有模态函数(IMF),并求得纱线信号的Hilbert谱.结合分析纱线信号的波谱图和Hilbert谱图,判断出故障产生的原因.
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| 关 键 词： | 纱线信号 Hilbert-Huang变换 经验模态分解 Hilbert谱 波谱图 变换 纱线信号 故障诊断 应用 Signal Yarn Fault Diagnosis Application 判断 波谱图 结合分析 Hilbert 模态函数 有限 信号分解 经验模态分解 基本原理 阐述 |
| 文章编号： | 1001-2257（2007）06-0039-03 |
| 修稿时间： | 2006-12-27 |
Hilbert-Huang Transform and Its Application to Fault Diagnosis of Yarn Signal |
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| ZHANG Min-cong,ZHU Kai-yu,LI Cong-xin.Hilbert-Huang Transform and Its Application to Fault Diagnosis of Yarn Signal[J].Machinery & Electronics,2007(6):39-42. |
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| Authors: | ZHANG Min-cong ZHU Kai-yu LI Cong-xin |
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| Affiliation: | National Die and Mold CAD Engineering Research Center,Shanghai Jiao Tong University,Shanghai 200030,China |
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| Abstract: | A new method of time-frequency analysis,the Hilbert spectrum analysis based on Hilbert-Huang transform is presented. The principle of the Hilbert-Huang transform is introduced at first.The original yarn signal is decomposed into finite intrinsic mode functions by empirical mode decomposition and Hilbert spectrum is acquired.The wave spectrum of original yarn signal,which is used frequently in textile enterprises,is analyzed and compared with Hilbert spectrum. |
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| Keywords: | yarn signal Hilbert-Huang transform empirical mode decomposition Hilbert spectrum wave spectrum |
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